Pump casing



FIG. 1 is a perspective view of a first embodiment of a pump casing of my new design for a pump casing;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a rear end view thereof;

FIG. 7 is a front end view thereof;

FIG. 8 is a perspective view of a second embodiment of a pump casing of my new design for a pump casing;

FIG. 9 is a bottom plan view thereof;

FIG. 10 is a right side view thereof;

FIG. 11 is a top plan view thereof;

FIG. 12 is a left side view thereof;

FIG. 13 is a front end view thereof; and,

FIG. 14 is a rear end view thereof. 

The ornamental design for a pump casing, as shown and described. 